The invention discloses a piece of construction equipment which uses high pressure for spraying two-fluid slurry to generate a horizontal jet grouting reinforcing body and belongs to the field of construction engineering technology, comprising a high pressure pump, a low pressure pump, an air compressor, a current divider, a treble tubular drill spray rod, a multifunctional spray-head, a horizontal drill and an orifice sealing device; wherein, the high pressure pump, the low pressure pump and the air compressor are connected on the treble tubular drill spray rod by the current divider, and the treble tubular drill spray rod is supported and connected by a bracket of the horizontal drill and is controlled by a drive of the horizontal drill to rotate as well as makes advance and retreat movement back and forth and translational movement left and right; one end of the multifunctional spray-head is connected with the treble tubular drill spray rod by a screw thread, the orifice sealing device is arranged at an orifice of a horizontal jet grouting pile, the spray-head and the treble tubular drill spray rod pass through the orifice sealing device to carry out drilling and spraying, and the treble tubular drill spray rod is sealed with the orifice sealing device. The construction equipment overcomes the deficiencies in the existing horizontal jet grouting technique, and a horizontal jet grouting pile body can be formed in a running sand layer, therefore, the efficiency of jet grouting construction is greatly improved.